Advocacy

TNI Resources

Management & Oversight

About TNI

The NELAC Institute (TNI) is a 501(c)(3) non-profit organization whose mission is to foster the generation of environmental data of known and documented quality through an open, inclusive, and transparent process that is responsive to the needs of the community. The organization is managed by a Board of Directors and is governed by organizational Bylaws.
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Resources

Management & Oversight

About Consensus Standards Development

The purpose of this program is to develop consensus standards for use by TNI's programs. This group has a support role in assisting other programs with activities such as guidance and standards interpretation. Learn more...

About NELAP

One of the ways that TNI fosters the generation of data of known and documented quality is through the National Environmental Laboratory Accreditation Program, or NELAP. The purpose of this program is to establish and implement a program for the accreditation of environmental laboratories. Learn more...

Management & Oversight

Related Expert Committees

About the TNI PT Program

The purpose of the Proficiency Testing Program is to establish and maintain a national PT program to support TNI’s National Environmental Laboratory Accreditation Program, and other activities. Learn more...

Management & Oversight

Related Expert Committee

About NEFAP

The purpose of the National Environmental Field Activities Program (NEFAP) Executive Committee is to establish and implement an accreditation program for field sampling and measurement organizations (FSMOs). Learn more...

TNI Conferences

Related Sites

About Training & Meetings

TNI hosts live and on-demand training on a variety of topics of interest to the environmental measurement community. TNI also hosts two regularly scheduled meetings per year, typically in January and August. Both are a week long and involve open meetings of TNI committees as well as training courses and other special sessions.

Interim Standard for NELAP Available for Review and Vote through 5-4-2016 - Proficiency Testing Volumes 3 and 4

The TNI Laboratory Proficiency Testing Expert Committee has voted to approve Interim Standards (ISs) that will affect Volumes 3 and 4 of the TNI laboratory accreditation standard. A copy of the ISs can be found below. A Response-to-Comments document from the Voting Draft Standards are also provided to explain the changes that went into the ISs. Click the links below to download.

Note that you are only voting on the changes made in response to the persuasive comments received during the Voting Draft Standard process. The entire standards are not open for vote and comment. The changes made are clearly noted through the use of track changes in the IS documents provided below. Any section of the standard that did not receive persuasive comments at the VDS stage is considered to have passed the voting process.

In accordance with SOP 2-100 (Procedures Governing Standards Development), this standard is open to a membership vote on March 22, 2016. All votes cast from the date of publication of the electronic ballot form up to forty-five (45) days after the date of its publication will be accepted. The vote will conclude on May 4, 2016. Any votes cast on or before May 4, 2016 (closing date) will be reviewed and considered by the Laboratory Proficiency Testing Expert Committee.

TNI urges all members to vote on this standard before May 4, 2016 (closing date). In order to vote, you must log in to the Members Only area of the website and then click on TNI NELAP (PT) Interim Standard BALLOT.